Cefminox Impurity 3 CAS CATO-C4X-19263
| CAS No. | CATO-C4X-19263 |
| Molecular Formula | C16H20N3O9S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Cefminox Impurity 3 (C16H20N3O9S2Na) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Cefminox Impurity 3 (CAS CATO-C4X-19263), a pharmacopoeial impurity reference standard (molecular formula C16H20N3O9S2Na, MW 485.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Cefminox Impurity 3 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H20N3O9S2 Na |
| Molecular Weight | 485.46 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefminox Standards
- Cefminox Sodium Heptahydrate (CAS 1351813-81-4)
- Cefminox Impurity 14 (CAS 51138-06-8)
- Cefminox Sodium Impurity 20 (CAS 57617-09-1)
- Cefminox Impurity 23 (CAS 74228-11-8)
- Cefminox Impurity 27 (CAS 75498-97-4)
- Cefminox (CAS 84305-41-9)
- Cefminox Sodium 7Hydrate (CAS 92636-39-0)
- Cefminox Sodium Impurity 10 (CAS CATO-C4X-192610)
Recommended Standards
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- Neuropeptide Y (13-36) (human, rat) (CAS 122341-40-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com